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. o u I I INVENTOR I a d@1a/% WITNESSES ATTORNEYS.

UNITED STATES PATENT OFFIC ALBERT P. BLATOHLEY, OF DEPOSIT, NEW YORK; ALBERT O. BLATOHLEY,. ADMINISTRATOR OF SAID ALBERT P. BLATOHLEY, DECEASED, ASSIGNOR TO ALBERT B. BLATCHLEY, OF SAME PLACE.

I STEAM-BOILER.

SPIEIGIFICATION forming part of Letters Patent No, 289,610, dated December 4,1883.

Application filed December 27, 1882.

To all whom it may concern.-

Be it known that I, ALBERT P. BLATOHLEY, of Deposit, in the county of Broome and State of New York, have invented certain new and 5 useful Improvements in Steam Boilers, of which the following is a full, clear, and exact description.

My invention relates to steam-boilers of the sectional type, in which awater and steam IO chamber at each end are connected by longitudinally-arranged water and steam pipes or tubes, suitable casings being provided to form a combustion-chamber around the tubes, about which tubes the products of combustion circu- I 5 late.

The invention consists in a special construction of the deflecting-plates for effective water-circulation, and in the means of securing the same in the end chambers of the-boiler.

2o The invention includes, also, a construction of the side casings of the boiler to admit of convenient access to the water-tubes for removal of sooty accumulations therefrom, and the end water and steam chambers are con 25 nected at the bottom only by the water-tubes, to avoid excessive expansion and contraction of the parts of the boiler, the object being to provide a boiler that may be cheaply built, that will steam quickly, and maybe readily 3ov cleaned and repaired, all as hereinafter fully described.

Reference is to be had to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate 3 5 corresponding parts in all the figures.

Figure l is a perspective View of my improved boiler, partly broken away. Fig. 2 is (No model.)

be removable, to expose the ends of the watercirculating tubes D, which are arranged lon-- gitudinally of the boiler, and are firmly expanded into the inner plates, B, to establish free water and steam circulation between the end chambers, A, through the tubes. Suitable firing-aperture, -I), fire-door c, and grate d are provided, the grate preferably extending the whole length of the combustion-chamber between the plates B B. Any suitable steam-outlet, as at e, safety-valve connections f, and test-cocks 9 may be provided with suitable blow-off and feed cocks at or near the base of either chamber A. The number and arrangement of the tubes D may vary with the uses and capacity of the boiler; but I prefer to arrange them in vertically-staggered position, as in Fig. 2, for the better introduction of the preferred form of water-deflecting plates E, Figs. 2 and 3, which are placed within the end chambers, A, between the plates B O, and to avoid piercing the latter plates, to secure the deflectors E in place, I intertwine the deflectors with or around the stay-bolts h,

or their inclosing spacing-tubes i, the staybolts being located to hold the deflectors clear of the ends of the tubes D. I prefer to make the deflectors Ein arched or double-ogee form, and of a length shorter than the width of the end chambers, A, so that the hotter waters and vapors may rise freely in the central arch of the deflectors, and the cooler currents flow down their ends at the sides of the chambers toward the fire-grate. The special purpose of the deflectors, however ,.is to secure and maintain a quick,constant circulation of the water tubes, D, extend across the boiler below the fire-grate; but these lower tubes may be omitted, if desired.

It will be noticed that the end chambers, A A, arenot connected at the bottom other than by the tubes D, whereby the joints of the tubes with the plates B of the chambers A are unaffected by the unequal expansion and contraction of any such bottom ties or plates.

The combustion-chamber about the tubesD is formed by side casing and by the head-casing F, suitably secured to the chambers A, and having a smoke-flue, G. Each side casing of the combustion chamber I make in two or more doors, H, here shown hinge-jointedvertically, to be opened by drawing the joints outward and releasing the sides of the doors from suitably-rabbeted stops or continuous angleplates, I, secured to the sides of the end chambers, A, which construction secures convenient access to the parts for cleaning and repair of the tubes and end plates of the boiler. The doors H will be secured by suitable slideloolts or other fastenings, and may also, with the other exterior parts of the boiler, be covered with any approved non-conductor of heat. The side doors, H, may be hinged horizontally, and the angle-plates correspondingly located at the top and base of the boiler; but the arrangement shown is preferred.

I do not limitmyself to the precise construction herein shown and describedas, for instance, the frame a may be substituted by angle-irons, to flanges of which the outside plates, 0, may be bolted, and one outside plate, 0, may alone be removable, as the opposite outside plate may be fixed, and may have suitable hand-holes forremoval of scale deposits dislodged from the tubes at that end of the boiler. The top of the boiler may also be of curved or arched form, as will be readily understood.

It is believed that this boiler has features which commend it for its quick-steaming properties, economy in working, accessibility for cleaning and repairs, and non-liability to disastrous explosion.

Having thus described myinvention, what I claim as new, and desire to secure by Letters Patent, is

ber alternating with those in the other cham-- ber, and adapted to provide clearance-passages between their ends and the sides of the chainbers, and the water-tubes arranged below the fire-grate and communicating with the end .chambers, substantially as and for the purpose set forth.

3. The combination, with the end chambers, A A, and tubes D, of water-deflectors E, fitted in the chambers, with aclearancespace at their ends for downflow of the cooler currents at the sides of the chambers, substantially as shown and described.

4. The combination, with end chambers, A A, and tubes D, of deflectors E, of arched form, and fitted in the chambers, with clearancespaces at their ends, substantially as shown and described.

5. The method of securing the deflectors in the end chambers, A A, of the boiler clear of the ends of the tubes D, which consists in intertwining the deflectors about the stay-bolts of the chambers, substantially as shown and described.

6. The combination, with theendsA A and top casing, F, of the boiler, of side casings, H H, hingejointed between flanges. or angleplates I I, whereby ready access is given to the interior of the boiler, substantially as shown and described.

ALBERT P. BLATGHLEY.

'Witnesses:

S. S. DOOLITTLE, IVM. B. LEwIs. 

